Human Impact

What is global warming

• the normal temperature fluctuations of Earth's climate cycle

• the melting of the polar ice caps

• the trend of increasing temperatures on Earth

• the changes in Earth's biosphere that affect the atmosphere

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NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

1. What is one of the greatest threats to biodiversity on Earth?

• habitat destruction

• loss of drinking water

• decrease in food supply

• pollution

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An area of land where all the water flows to one location, like a funnel. 

• Superfund Site
• Watershed
• Succession
• River

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NGSS.MS-ESS2-4

Many different types of organisms. 

• Pioneer species
• Community
• Biodiversity
• Population

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NGSS.MS-LS2-2

NGSS.MS-LS2-5

The presence of wastes, such as plastic bags and motor oil, in lakes and streams miles away from developed areas suggests that

• . ecosystems are interconnected and human action can alter ecosystem equilibrium.
• recycling programs have failed to conserve biotic resources.
  
• natural processes can alter ecosystem stability.
•  direct harvesting practices have led to irreversible destruction of ecosystems.

Biotic factors would include all but..

• humans
• fish
• Trees
• soil

Abiotic factors would include all but...

• Sunlight
• Plants
• Pollution
• Temperature

What do organisms release in the carbon/oxygen cycle?

• carbon dioxide
• oxygen 

What is the greenhouse effect?

• the burning of fossil fuels causes gases to mix with water in the atmosphere
• ground level ozone and vehicle exhaust react in the presence of sunlight
• certain gases such as carbon dioxide act like a blanket and keep the sun's energy close to earth

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NGSS.MS-ESS3-5

Which is a cause of climate change?

• melting of sea ice
• cutting down trees
• severe storms 
• changes in plant life 

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NGSS.MS-ESS3-5